<template>
    <div>
        <div class="search">
            <input v-model="keyword" class="search-input" type="text" placeholder="输入城市名称或拼音">
        </div>
        <div class="search-content" ref="search"v-show="keyword">
            <ul>
                <li class="search-item border-bottom" v-for="item of list" :key="item.id" @click="handleCityClick(item.name)">
                    {{item.name}}
                </li>
                <li class="search-item border-bottom" v-show="hasNoData">
                    没有找到匹配数据
                </li>
            </ul>
        </div>
    </div>
</template>
<script>
import { setTimeout } from "timers";
import { clearTimeout } from "timers";
import Bscroll from "better-scroll"
import { mapMutations } from "vuex";
export default {
  name: "CitySearch",
  props: {
    cities: Object
  },
  data() {
    return {
      keyword: "",
      list: [],
      timer: null
    };
  },
  methods: {
       handleCityClick (city) {
          //this.$store.commit("changeCity",city)
          this.changeCity(city)
          this.$router.push("/")
      },
      ...mapMutations(["changeCity"])
  },
  watch: {
    keyword() {
      if (this.timer) {
        clearTimeout(this.timer);
      }
      if (!this.keyword) {
          this.list = []
          return
      }
      this.timer = setTimeout(() => {
        const result = [];
        for (let i in this.cities) {
          this.cities[i].forEach(value => {
            if (
              value.spell.indexOf(this.keyword) > -1 ||
              value.name.indexOf(this.keyword) > -1
            ) {
              result.push(value);
            }
          });
        }
        this.list = result;
      }, 100);
    }
  },
  mounted () {
    this.scroll = new Bscroll (this.$refs.search)
  },
  computed: {
      hasNoData () {
          return !this.list.length
      }
  }
};
</script>
<style lang="stylus" scoped>
@import '~styles/varibles.styl';

.search {
    height: 0.72rem;
    padding: 0 0.1rem;
    background-color: $bgColor;
}

.search-input {
    width: 100%;
    height: 0.62rem;
    line-height: 0.62rem;
    text-align: center;
    border-radius: 0.06rem;
    padding: 0 0.1rem;
    box-sizing: border-box;
    color: #666;
}

.search-content {
    overflow: hidden;
    position: absolute;
    top: 1.58rem;
    left: 0;
    right: 0;
    bottom: 0;
    background: #eee;
    z-index: 1;
}

.search-item {
    line-height: 0.62rem;
    padding-left: 0.2rem;
    color: #666;
    background-color #fff
}
</style>
